Isabel Marant Ferlyn Collapsible Heel Calf Leather Loafer Black. Size 38: Isabel Marant Buckle Embellished loafer in calf leather; back folds down to convert to mule. an elongated square toe and minimal gold-toned ring buckle detail at the front. Intentionally folded-in heels for slip-on option. Fully lined in calfskin. Flat stacked heel. collapsible heel that can be worn backless or like a traditional loafer. Color: Black. Upper: 100% Calfskin; Lining: 100% Calfskin; Insole: 100% Calfskin; Outsole. Made in Italy. Will come in a nice designer box but I don't have the original Isabel Marant box. EUC as shown in all the photos. 100% Authentic. Pet/Smoke Free. Same Day Shipping.